Natural kraft paper is the most durable of the traditional packaging materials. It is used where full strength is desired, such as in industrial bags, shopping bags, inner plies of multiwall sacks, or plain wrapping paper. Kraft fibers are also used to make corrugated board liners. The best white paper is bleached kraft paper.
The kraft paper is useful for the applications requiring strength, printability, and appearance, such as flour and sugar bags, stickers, and envelopes
How Is Kraft Paper Made?